Claude Patin is probably an alias as patin in slang means kiss.
Charlotte is spending her holiadays in the country with her aunt Amélie who is always away. Hélène (Jenny Feeling) and Olivier are the aunt's guests, a perverse couple. Hélène tries to seduce Charlotte in the shower. Unsuccessfully though. Charlotte meets a boy, Christian, who is very romantic, and they have long walks together in the country. Hélène and Olivier try to seduce Charlotte every night. Charlotte makes love with Christian in an old ruined castle. Hélène who fears Charlotte might escape her, invites her friends Marina and Frédéric, a liberated couple to a picnic and a game of blindman's bluff. Hélène manages to seduce Cristian but is caught in the act by Charlotte who is desperate. On the evening Christian is forgiven and Charlotte and he run away from the place and they make love in a meadow.
There are two versions of this film (soft and hard). Strangely enough, the soft one was released in France with five hard inserts added.
From a review originally published in Cine-films n°4, 1979, translated by Prophilo.